Hello all,
This is my first post on AAC and I will try to make it succinct.
What I wish to accomplish:
I would like to safely switch a 1A 12vdc fan motor on/off when a 120vac signal is active/inactive.
Research:
My first thought is to use something like this http://www.opto22.com/site/pr_details.aspx?cid=4&item=120D3 relay but it is unclear to me whether it can switch with 120v and control 12v and whether or not it is the best way to do so.
More detailed description:
In a 25' cabin cruiser, I have a small refrigerator that runs off of an inverter from the 12v batteries in the boat. The fridge will always, (unless the main perko switch is off), have 120v going to it's control board but will only engage it's compressor when necessary. Due to the tight installation requirements, there is not much room for natural air flow across the cooling coils of the fridge. I would like to tap in to circuit that runs the compressor and engage a cooling fan, (run directly from the batteries for efficiency), to cool the coils.
Any thoughts or observations would be greatly appreciated!
Robert
This is my first post on AAC and I will try to make it succinct.
What I wish to accomplish:
I would like to safely switch a 1A 12vdc fan motor on/off when a 120vac signal is active/inactive.
Research:
My first thought is to use something like this http://www.opto22.com/site/pr_details.aspx?cid=4&item=120D3 relay but it is unclear to me whether it can switch with 120v and control 12v and whether or not it is the best way to do so.
More detailed description:
In a 25' cabin cruiser, I have a small refrigerator that runs off of an inverter from the 12v batteries in the boat. The fridge will always, (unless the main perko switch is off), have 120v going to it's control board but will only engage it's compressor when necessary. Due to the tight installation requirements, there is not much room for natural air flow across the cooling coils of the fridge. I would like to tap in to circuit that runs the compressor and engage a cooling fan, (run directly from the batteries for efficiency), to cool the coils.
Any thoughts or observations would be greatly appreciated!
Robert